Clamped body replacement tool
US5074717A · kind A · utility
2Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Oct 5, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fluid operated tool 30 (FIG. 4) for use in replacing a body clamped between facing platens has an open ended tubular member 31, through which the body can pass, that carries outwardly thereof, and axially extending, coplaner support arms 33, 34 at the end of which are hydraulic piston and cylinder arrangements 35, 36 for inserting between the platens to overcome the clamping force on the body, permitting it to be removed and replaced by way of the tubular member 31. The tool may be used subsea with a submersible to handle it and provide hydraulic power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.